In addition, Brompton Cemetery and Victoria Tower Gardens will also remain closed.

The Royal Parks has said it is concerned about its "significant population of ancient and veteran trees that are vulnerable to high winds," and has taken this rare measure to protect public safety.

All parks will reopen on Monday, as soon as it is deemed safe to do so, the statement continued.

The Met Office has also warned that "rail, air and ferry services may be affected", and that roads and bridges may need to be closed.

Coastal towns have been given "danger to life" warnings over large coastal waves throwing debris onto roads and houses.

People are also being warned of possible power outages.

Trains passengers are urged to only travel on Sunday if their journey is "absolutely necessary."

Network Rail urged people living near rail lines to tie down or clear away garden furniture and trampolines.Passengers travelling on Sunday and Monday morning are urged to check for updates before they travel.

They are warning that strong winds have the potential to damage overhead electric wires and tracks due to debris or trees falling onto the railway.

Reduced timetables and speed restrictions are in place across rail networks.

The London Winter Run 10k event - due to be attended by 25,000 runners - was also cancelled after organisers said they were "not able to guarantee the safety of our runners, crew and volunteers."

⚠️⚠️Amber warning updated⚠️⚠️

High #winds expected for Wales and most of England due to #StormCiaًra, with an amber warning valid from 0800 to 2100 on Sunday